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RetroArch/menu/menu_animation.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2014-2015 - Jean-André Santoni
* Copyright (C) 2011-2015 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "menu_animation.h"
#include <math.h>
#include <string.h>
#include <compat/strl.h>
#include <retro_miscellaneous.h>
#include "../runloop.h"
/* from https://github.com/kikito/tween.lua/blob/master/tween.lua */
static float easing_linear(float t, float b, float c, float d)
{
return c * t / d + b;
}
static float easing_in_out_quad(float t, float b, float c, float d)
{
t = t / d * 2;
if (t < 1)
return c / 2 * pow(t, 2) + b;
return -c / 2 * ((t - 1) * (t - 3) - 1) + b;
}
static float easing_in_quad(float t, float b, float c, float d)
{
return c * pow(t / d, 2) + b;
}
static float easing_out_quad(float t, float b, float c, float d)
{
t = t / d;
return -c * t * (t - 2) + b;
}
static float easing_out_in_quad(float t, float b, float c, float d)
{
if (t < d / 2)
return easing_out_quad(t * 2, b, c / 2, d);
return easing_in_quad((t * 2) - d, b + c / 2, c / 2, d);
}
static float easing_in_cubic(float t, float b, float c, float d)
{
return c * pow(t / d, 3) + b;
}
static float easing_out_cubic(float t, float b, float c, float d)
{
return c * (pow(t / d - 1, 3) + 1) + b;
}
static float easing_in_out_cubic(float t, float b, float c, float d)
{
t = t / d * 2;
if (t < 1)
return c / 2 * t * t * t + b;
t = t - 2;
return c / 2 * (t * t * t + 2) + b;
}
static float easing_out_in_cubic(float t, float b, float c, float d)
{
if (t < d / 2)
return easing_out_cubic(t * 2, b, c / 2, d);
return easing_in_cubic((t * 2) - d, b + c / 2, c / 2, d);
}
static float easing_in_quart(float t, float b, float c, float d)
{
return c * pow(t / d, 4) + b;
}
static float easing_out_quart(float t, float b, float c, float d)
{
return -c * (pow(t / d - 1, 4) - 1) + b;
}
static float easing_in_out_quart(float t, float b, float c, float d)
{
t = t / d * 2;
if (t < 1)
return c / 2 * pow(t, 4) + b;
return -c / 2 * (pow(t - 2, 4) - 2) + b;
}
static float easing_out_in_quart(float t, float b, float c, float d)
{
if (t < d / 2)
return easing_out_quart(t * 2, b, c / 2, d);
return easing_in_quart((t * 2) - d, b + c / 2, c / 2, d);
}
static float easing_in_quint(float t, float b, float c, float d)
{
return c * pow(t / d, 5) + b;
}
static float easing_out_quint(float t, float b, float c, float d)
{
return c * (pow(t / d - 1, 5) + 1) + b;
}
static float easing_in_out_quint(float t, float b, float c, float d)
{
t = t / d * 2;
if (t < 1)
return c / 2 * pow(t, 5) + b;
return c / 2 * (pow(t - 2, 5) + 2) + b;
}
static float easing_out_in_quint(float t, float b, float c, float d)
{
if (t < d / 2)
return easing_out_quint(t * 2, b, c / 2, d);
return easing_in_quint((t * 2) - d, b + c / 2, c / 2, d);
}
static float easing_in_sine(float t, float b, float c, float d)
{
return -c * cos(t / d * (M_PI / 2)) + c + b;
}
static float easing_out_sine(float t, float b, float c, float d)
{
return c * sin(t / d * (M_PI / 2)) + b;
}
static float easing_in_out_sine(float t, float b, float c, float d)
{
return -c / 2 * (cos(M_PI * t / d) - 1) + b;
}
static float easing_out_in_sine(float t, float b, float c, float d)
{
if (t < d / 2)
return easing_out_sine(t * 2, b, c / 2, d);
return easing_in_sine((t * 2) -d, b + c / 2, c / 2, d);
}
static float easing_in_expo(float t, float b, float c, float d)
{
if (t == 0)
return b;
return c * powf(2, 10 * (t / d - 1)) + b - c * 0.001;
}
static float easing_out_expo(float t, float b, float c, float d)
{
if (t == d)
return b + c;
return c * 1.001 * (-powf(2, -10 * t / d) + 1) + b;
}
static float easing_in_out_expo(float t, float b, float c, float d)
{
if (t == 0)
return b;
if (t == d)
return b + c;
t = t / d * 2;
if (t < 1)
return c / 2 * powf(2, 10 * (t - 1)) + b - c * 0.0005;
return c / 2 * 1.0005 * (-powf(2, -10 * (t - 1)) + 2) + b;
}
static float easing_out_in_expo(float t, float b, float c, float d)
{
if (t < d / 2)
return easing_out_expo(t * 2, b, c / 2, d);
return easing_in_expo((t * 2) - d, b + c / 2, c / 2, d);
}
static float easing_in_circ(float t, float b, float c, float d)
{
return(-c * (sqrt(1 - powf(t / d, 2)) - 1) + b);
}
static float easing_out_circ(float t, float b, float c, float d)
{
return(c * sqrt(1 - powf(t / d - 1, 2)) + b);
}
static float easing_in_out_circ(float t, float b, float c, float d)
{
t = t / d * 2;
if (t < 1)
return -c / 2 * (sqrt(1 - t * t) - 1) + b;
t = t - 2;
return c / 2 * (sqrt(1 - t * t) + 1) + b;
}
static float easing_out_in_circ(float t, float b, float c, float d)
{
if (t < d / 2)
return easing_out_circ(t * 2, b, c / 2, d);
return easing_in_circ((t * 2) - d, b + c / 2, c / 2, d);
}
static float easing_out_bounce(float t, float b, float c, float d)
{
t = t / d;
if (t < 1 / 2.75)
return c * (7.5625 * t * t) + b;
if (t < 2 / 2.75)
{
t = t - (1.5 / 2.75);
return c * (7.5625 * t * t + 0.75) + b;
}
else if (t < 2.5 / 2.75)
{
t = t - (2.25 / 2.75);
return c * (7.5625 * t * t + 0.9375) + b;
}
t = t - (2.625 / 2.75);
return c * (7.5625 * t * t + 0.984375) + b;
}
static float easing_in_bounce(float t, float b, float c, float d)
{
return c - easing_out_bounce(d - t, 0, c, d) + b;
}
static float easing_in_out_bounce(float t, float b, float c, float d)
{
if (t < d / 2)
return easing_in_bounce(t * 2, 0, c, d) * 0.5 + b;
return easing_out_bounce(t * 2 - d, 0, c, d) * 0.5 + c * .5 + b;
}
static float easing_out_in_bounce(float t, float b, float c, float d)
{
if (t < d / 2)
return easing_out_bounce(t * 2, b, c / 2, d);
return easing_in_bounce((t * 2) - d, b + c / 2, c / 2, d);
}
void menu_animation_free(animation_t *animation)
{
size_t i;
if (!animation)
return;
for (i = 0; i < animation->size; i++)
{
if (animation->list[i].subject)
animation->list[i].subject = NULL;
}
free(animation->list);
free(animation);
}
bool menu_animation_push(animation_t *animation,
float duration, float target_value, float* subject,
enum animation_easing_type easing_enum, tween_cb cb)
{
if (animation->size >= animation->capacity)
{
animation->capacity++;
animation->list = (struct tween*)realloc(animation->list,
animation->capacity * sizeof(struct tween));
}
animation->list[animation->size].alive = 1;
animation->list[animation->size].duration = duration;
animation->list[animation->size].running_since = 0;
animation->list[animation->size].initial_value = *subject;
animation->list[animation->size].target_value = target_value;
animation->list[animation->size].subject = subject;
animation->list[animation->size].cb = cb;
switch (easing_enum)
{
case EASING_LINEAR:
animation->list[animation->size].easing = &easing_linear;
break;
/* Quad */
case EASING_IN_QUAD:
animation->list[animation->size].easing = &easing_in_quad;
break;
case EASING_OUT_QUAD:
animation->list[animation->size].easing = &easing_out_quad;
break;
case EASING_IN_OUT_QUAD:
animation->list[animation->size].easing = &easing_in_out_quad;
break;
case EASING_OUT_IN_QUAD:
animation->list[animation->size].easing = &easing_out_in_quad;
break;
/* Cubic */
case EASING_IN_CUBIC:
animation->list[animation->size].easing = &easing_in_cubic;
break;
case EASING_OUT_CUBIC:
animation->list[animation->size].easing = &easing_out_cubic;
break;
case EASING_IN_OUT_CUBIC:
animation->list[animation->size].easing = &easing_in_out_cubic;
break;
case EASING_OUT_IN_CUBIC:
animation->list[animation->size].easing = &easing_out_in_cubic;
break;
/* Quart */
case EASING_IN_QUART:
animation->list[animation->size].easing = &easing_in_quart;
break;
case EASING_OUT_QUART:
animation->list[animation->size].easing = &easing_out_quart;
break;
case EASING_IN_OUT_QUART:
animation->list[animation->size].easing = &easing_in_out_quart;
break;
case EASING_OUT_IN_QUART:
animation->list[animation->size].easing = &easing_out_in_quart;
break;
/* Quint */
case EASING_IN_QUINT:
animation->list[animation->size].easing = &easing_in_quint;
break;
case EASING_OUT_QUINT:
animation->list[animation->size].easing = &easing_out_quint;
break;
case EASING_IN_OUT_QUINT:
animation->list[animation->size].easing = &easing_in_out_quint;
break;
case EASING_OUT_IN_QUINT:
animation->list[animation->size].easing = &easing_out_in_quint;
break;
/* Sine */
case EASING_IN_SINE:
animation->list[animation->size].easing = &easing_in_sine;
break;
case EASING_OUT_SINE:
animation->list[animation->size].easing = &easing_out_sine;
break;
case EASING_IN_OUT_SINE:
animation->list[animation->size].easing = &easing_in_out_sine;
break;
case EASING_OUT_IN_SINE:
animation->list[animation->size].easing = &easing_out_in_sine;
break;
/* Expo */
case EASING_IN_EXPO:
animation->list[animation->size].easing = &easing_in_expo;
break;
case EASING_OUT_EXPO:
animation->list[animation->size].easing = &easing_out_expo;
break;
case EASING_IN_OUT_EXPO:
animation->list[animation->size].easing = &easing_in_out_expo;
break;
case EASING_OUT_IN_EXPO:
animation->list[animation->size].easing = &easing_out_in_expo;
break;
/* Circ */
case EASING_IN_CIRC:
animation->list[animation->size].easing = &easing_in_circ;
break;
case EASING_OUT_CIRC:
animation->list[animation->size].easing = &easing_out_circ;
break;
case EASING_IN_OUT_CIRC:
animation->list[animation->size].easing = &easing_in_out_circ;
break;
case EASING_OUT_IN_CIRC:
animation->list[animation->size].easing = &easing_out_in_circ;
break;
/* Bounce */
case EASING_IN_BOUNCE:
animation->list[animation->size].easing = &easing_in_bounce;
break;
case EASING_OUT_BOUNCE:
animation->list[animation->size].easing = &easing_out_bounce;
break;
case EASING_IN_OUT_BOUNCE:
animation->list[animation->size].easing = &easing_in_out_bounce;
break;
case EASING_OUT_IN_BOUNCE:
animation->list[animation->size].easing = &easing_out_in_bounce;
break;
default:
animation->list[animation->size].easing = NULL;
break;
}
animation->size++;
return true;
}
static int menu_animation_iterate(struct tween *tween, float dt,
unsigned *active_tweens)
{
if (!tween)
return -1;
if (tween->running_since >= tween->duration)
return -1;
tween->running_since += dt;
if (tween->easing)
*tween->subject = tween->easing(
tween->running_since,
tween->initial_value,
tween->target_value - tween->initial_value,
tween->duration);
if (tween->running_since >= tween->duration)
{
*tween->subject = tween->target_value;
if (tween->cb)
tween->cb();
}
if (tween->running_since < tween->duration)
*active_tweens += 1;
return 0;
}
bool menu_animation_update(animation_t *animation, float dt)
{
unsigned i;
unsigned active_tweens = 0;
for(i = 0; i < animation->size; i++)
menu_animation_iterate(&animation->list[i], dt, &active_tweens);
if (!active_tweens)
{
animation->size = 0;
return false;
}
g_runloop.frames.video.current.menu.animation.is_active = true;
return true;
}
/**
* menu_animation_ticker_line:
* @buf : buffer to write new message line to.
* @len : length of buffer @input.
* @idx : Index. Will be used for ticker logic.
* @str : Input string.
* @selected : Is the item currently selected in the menu?
*
* Take the contents of @str and apply a ticker effect to it,
* and write the results in @buf.
**/
void menu_animation_ticker_line(char *buf, size_t len, unsigned idx,
const char *str, bool selected)
{
unsigned ticker_period, phase, phase_left_stop;
unsigned phase_left_moving, phase_right_stop;
unsigned left_offset, right_offset;
size_t str_len = strlen(str);
if (str_len <= len)
{
strlcpy(buf, str, len + 1);
return;
}
if (!selected)
{
strlcpy(buf, str, len + 1 - 3);
strlcat(buf, "...", len + 1);
return;
}
/* Wrap long strings in options with some kind of ticker line. */
ticker_period = 2 * (str_len - len) + 4;
phase = idx % ticker_period;
phase_left_stop = 2;
phase_left_moving = phase_left_stop + (str_len - len);
phase_right_stop = phase_left_moving + 2;
left_offset = phase - phase_left_stop;
right_offset = (str_len - len) - (phase - phase_right_stop);
/* Ticker period:
* [Wait at left (2 ticks),
* Progress to right(type_len - w),
* Wait at right (2 ticks),
* Progress to left].
*/
if (phase < phase_left_stop)
strlcpy(buf, str, len + 1);
else if (phase < phase_left_moving)
strlcpy(buf, str + left_offset, len + 1);
else if (phase < phase_right_stop)
strlcpy(buf, str + str_len - len, len + 1);
else
strlcpy(buf, str + right_offset, len + 1);
g_runloop.frames.video.current.menu.animation.is_active = true;
}
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